Loose-leaf binder.



' R. E.- GRESSER.

LOOSE LEAP BINDER.

APPLICATION FILED 1112131912.v

Paten t ed Dec. 17, 1912.

2 SHBETS-SHBET 1.

R. E. GRESSER.

LDOSE LEAP BINDER.

APPLIOATION FILED r3317, 1912.

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, w MQM NJ W N T w J Figure 1 is a perspective view of a binder UNITE STATES PATENT-OFFICE. r

oBEEr EUGENE eREssER, or rams, FRANCE,

LoosE-LEAE BINDER.

Specification of Letters Patent. I Application filed February 27, 1912. Serial No. 680,169.

. To all whom it may concern Be it known that I, ROBERT EUGENE GR ssER, a citizen of the Republic of France, residing at Paris, in the Department of the Seine and Republic of France, have invented new and useful Improvements in Loose-Leaf Binders,of which the, following is a specification. v v

The present invention relates to a form of register, book or notebook having removable interchangeableleaves, which presents when assembled the aspect of a book sewn in the usual manner, but is distinguished therefrom by the fact thateach leaf, instead of being permanently held by a'thread is held by a movable'pin or rod which permits the insertion or withdrawal of each leaf of the book withgreat ease and as desired.

The invention is illustrated in the accompanying drawings, in which:

according to the present invention, showing the binder open wit-h va number of leaves fixed in position. Fig. 2 is a plan view of a portion'of theleather-strip, provided with incisions for the reception of the hooks for the leaves; this stripis fixed inside theback of the binder by means of metal plates and screws. Fig. 3 is a view of a pair of the metal plates used to fixthe leather shown in Fig. 2. Fig. 4 shows apair of the metal hooks or clasps used to hold the leaves. Fig.

'5 represents a portion of a leaf to be'bound showing the rectangular hole .madein the fold of the said leaf for the passage of the hooks or clasps. Fig. 6 is'a side view of the V-shaped guide-key which is placed on the hooks to guide the various sheets when being put in position. Fig. 7 is an end view,

looking on the right ofFig. 6. Fig. 8 represents the pin which retains each set of leaves. I

The binder consists of a cover, formed in the usual manner, of two boards a a, connectedby a'rigid semi-circular back I), fastened as usualto the boardsa a by means ofhinges. The boards-are thinned at the points wherethey areconnected to the back 6, as shown at a, tomake room for the metalplates d and d.= I

Inside the back is placed a strip of leather 0 (Figs. 1 and 2) having holes a at its edges. It is fixed to each of the boards a, a,

tby means of metal sheets or plates d, d,

placedone inside and the o-theroutside the board, on the thinned portions a and connected together by screws 6 which pass, as i will easily be understood through the holes 0 in the leather strip c, the latter being inserted between the board of the cover and the interior metal plate at i A number of incisions f, which'are staggered relative to each other, are made in the leather-strip c and are destined tore-v ceive the hooks g which serve :to-hold the leaves. As shown in Fig. 3i, these hooks g, which are introduced into the incisions f inthe strip of leather, are formed of a pieceof metal folded on itself so as to form a flat base 9 andtwo lateral portions g 9 standing up from said base perpendicularly, the portion 9 being bent so that its free edge is exactly vertically above. the upper free edge of the portion '9 it and said latter edge the introduction of the scribed. At the ends of and leaves, between a narrow slit 9* for pin hereinafterde the curved portion 9?, recesses g for'the reception of thetenons: i

of the V-shaped key, described-below, are stamped or pressedoutor formed in any other suitable'manner, The flat portion 9 of the hook projects at eitherend beyond the portions g and g a 9 g. The extension of thB'PHJ'lJQ PI'OjGCtS more than the other, 9 The longer projection is arranged, forthe hooks of one ofthe vertical rows, at one'end of the extremities of the said hooks, while for thehooksfof the adjacent row or rows, it is arranged toward the opposite end, as is clearly shown the hooks g to, be introduced into the strip ofleather-by placing the projection 9 at] y the top and bottom alternately, so'as to avoid cutting the strip of leather by incisions which lie in line with each other, as would be the case if the projectingportions g of thehooks were always same side. 1 o

Each sheet 72. to be bound isprovided, on

.its edgenearest the center of the binder,

with a flap'h whose thickness is equal to half thatof the rest of the sheet. This flap is folded on itself to form a central crease 1 05 rectangular holes,.h having at "their ends, i

71. and centrally with this crease are formed short extensions k of less width, which'are intended to fit on portions of the l ;ey,1as-

nd is folded as at i i 90, in Fig. 4. This is done in order to enable placed on the o r explained below, and are spacedso as to correspond to the distance apart of the hooks g fixed on the strip of leather. In this way, sheets k can be slipped onto the said hooks by means of the holes h.

The guide-key, Figs. 6 and 7, consists of a V-shaped piece of steel having at its free ends hooked extensions 71 which fit in recesses g in the hooks 9 so as to hold the key on these latter. This key facilitates the introduction of the openings in the paper on the said hooks when placing each leaf in position. On each side of the hooked extensions each branch of the key 2' is provided with shoulders 2' i The shoulders 2' coiiperate with the extensions 71. of the openings h in each sheet of paper and thereby serve to hold the sheets, while the shoulders i bear against the outer walls of the recesses g of the hooks thus serving to prevent the key from entering and hindering the free passage of the pin.

The pin 8) consists of a thin piece of steel terminating bluntly at one end, and at the other end is flattened and turned at right angles to form a head j. This pin which takes the place of the usual thread for holding, in the binder, the different sheets of the same gathering or signature, is provided near its head j with a flattened or thinner portion 7' of such size that it can enter the slots 9*, while for the rest of its length, the pin j is too thick to be able to pass through said slots.

The strip of leather 0, fitted with the hooks g, being fixed inside the back 6 of the binder by means of the plates (Z, d and the screws 6, a V-shaped guide-key i is placed upon each of the hooks of the same vertical line and consequently of the same gathering or signature. Thesheets h are then slipped one by one on the hooks g by means of the holes 71, provided in the thinned heels of the sheets, taking care that rightand left-hand sheets are placed alternately as shown in Fig. 1. When the gathering or signature is finished, that is to say, when the number of sheets therein comprised has been inserted in the manner described a pin 9' is taken and introduced into the hooks in question by passing the thin portion j through the slot 9 in each of the hooks successively. The guide-key i is then withdrawn and the sheets will then be found to be held as securely within the binder as if they were sewn in the usual manner.

If it is desired to withdraw one or more sheets from the binder, it is sufficient to withdraw the pin j by its head from the hooks, whereupon the leaves can be withdrawn by slipping. them off the hooks by means of the holes h.

' It will be seen that by means of the present invention it is possible to bind the leaves or to withdraw them from the binder and to re-insert them, as desired, without tearing or injuring them in any way. F urthermore the binder can always be opened flat, as if it were formed of gatherings or signatures connected together by sewing in thelusual manner.

It will be understood that the shape, details of construction and materials employed in carrying this invention into eil'ect can be modified without in any way changing the principle of the invention.

I claim:

1. A loose leaf binder comprising a two part cover, a back connecting the two parts of said cover, a member disposed internally of said back, a plurality of rows of hooks attached to said member for the reception of the leaves, the hooks of each of said rows being arranged in staggered relation to those of the adjacent rows, and a pin adapted to hold said leaves on said hooks.

2. A. loose-leaf binder comprising a twopart cover, a rigid back connecting the two parts of said cover, a leather strip held in place within said back, said strip being provided with incisions for the reception of a plurality of hooks for the reception of the leaves, and a pin adapted to hold said leaves on the hooks.

3. A loose-leaf binder comprising a twopart cover, a back connecting the two parts of said cover, a leather-strip held within said back and provided with incisions, a plurality of hooks attached to said strip, said hooks having base portions adapted to be inserted in said incisions and to be bent around to hold the hooks thereto, a key adapted to cooperate with said hooks for guiding the leaves thereon and a pin adapted to hold said leaves on the hooks.

4. A loose-leaf binder comprising a twopart cover, a back connecting the two halves of said cover, a leather strip held within said back and provided with incisions, a plurality of leaf-holding hooks, said hooks having two base portions of unequal length and being arranged in rows with the longer base portion arranged in each row alternately toward the top and bottom of the binder, said base portions being adapted to be inserted in said incisions and to be bent around to hold the hooks to the strip, a guide-key adapted to cooperate with said hooks during the insertion of the slotted leaves and a pin adapted to hold said leaves on the hooks.

5. In a loose-leaf binder the hook (g) said hook having base portions (g g) for attaching it to the binder, and side walls with the base portions (g g the side walls (g one of said alls being bent around ,fof the hooks (g) having so that its free edge, stands above the edge of the other wall, with a space between them and recesses (9 provided in said bent-over side wall for the purpose set forth.

- 7. In a loose-leaf binder the combination base portions (9 9 side walls (g one of said side walls of a hook (9) having base portions side walls (g one of said side walls bebeing bent around so that its free edge stands I above the edge of the other wall leaving a having a thinnedv portion (j adapted space between these two edges and a pin (j) to pass between the two edges of the side walls and a thicker portion incapable of passing through said space for the purpose set forth.

8. vIn a loose-leaf binder the combination (9 9 lngbent around so that its free edge stands above the edge of the other wall leaving a space between these two edges and recesses 9 with a guide-key having at two of its ends pro ections 2" adapted to engage QW ith said recesses (9 and shoulders (6 7 Copies of this patent may be obtained for five cents each, by addressing the (11,) of half the thickness adapted to engage the end walls of the recesses (g and shoulders (6 adapted to engage the slots in thesheet to be bound.

9. A loose-leaf binder comprising the two covers (a, a) the back (6), a leather strip (0) within said back, hooks (g) attached to said strip and adapted to receive the slotted leaves, a guide-key (2') adapted to engage with said hooks and to guide the leaves into place on the hooks, and a pin (j) adapted to engage the hooks to retain the leaves thereon.

' 10. In a loose leaf binder having hooks,

the sheet it having a thinned flap portion of the remainder of the sheet, said flap being folded down the center and slotted centrally of the fold to fit the hooks.

7 ROBERT EUGENE Witnesses: r

R. H. BRANDON, MAURICE H. PIQUET.

erE ssEE.

Commissioner of Patents, i 

